US Patent Issued to NxStage Medical on March 31 for "Optical pressure measurement devices, methods, and systems" (Massachusetts Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,856, issued on March 31, was assigned to NxStage Medical Inc. (Lawrence, Mass.).

"Optical pressure measurement devices, methods, and systems" was invented by Mark T. Wyeth (Andover, Mass.), James M. Brugger (Newburyport, Mass.) and Adam G. McDermott (Acton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure measurement system includes a pressure pod with two chambers separated by a diaphragm such that a deformation/movement of the diaphragm is indicative of a difference between the pressures of the two chambers. Such deformation/movement is detected by a device that has no physical contact with the diaphragm, for example, by an optical...